Global Patent Index - EP 0492665 B1

EP 0492665 B1 19980603 - Electrophotographic electroconductive magnetic carrier, developer using the same and image formation method

Title (en)

Electrophotographic electroconductive magnetic carrier, developer using the same and image formation method

Title (de)

Elektrophotographische elektrisch leitende magnetische Trägerteilchen, Entwickler mit derartigen Teilchen und Bildherstellungsverfahren

Title (fr)

Particule électroconductive de support magnétique électrophotographique, révélateur utilisant le même et méthode de formation d'image

Publication

EP 0492665 B1 19980603 (EN)

Application

EP 91122327 A 19911227

Priority

  • JP 20755491 A 19910723
  • JP 28087091 A 19911001
  • JP 41707490 A 19901228

Abstract (en)

[origin: EP0492665A1] An electroconductive magnetic carrier which is composed of basic particles, each of the basic particles comprising a binder resin and a magnetic material dispersed in the binder resin, and an electroconductive layer formed on the surface of the basic particle, a developer which is composed of the above electroconductive magnetic carrier and (b) an electrically insulating toner, and an image formation method of forming toner images on a photoconductor by using this developer are described.

IPC 1-7

G03G 9/107; G03G 9/113

IPC 8 full level

G03G 9/107 (2006.01); G03G 9/113 (2006.01)

CPC (source: EP US)

B82Y 15/00 (2013.01 - EP US); G03G 9/1075 (2013.01 - EP US); G03G 9/1131 (2013.01 - EP US); G03G 9/1139 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0492665 A1 19920701; EP 0492665 B1 19980603; DE 69129529 D1 19980709; DE 69129529 T2 19981126; US 5256513 A 19931026; US 5318873 A 19940607

DOCDB simple family (application)

EP 91122327 A 19911227; DE 69129529 T 19911227; US 1369793 A 19930204; US 81580591 A 19911230